Piston Pin And Bearing Inspection - Yamaha WaveRunner XLT800 Wartungshandbuch

POWR
PISTONS
2. Measure:
G End gap
(with a thickness gauge 1)
Out of specification → Replace the
piston rings as a set.
End gap:
0.30–0.45 mm (0.012–0.018 in)
NOTE:
Push the piston ring into the cylinder with
the piston crown.

Piston pin and bearing inspection

1. Inspect:
Piston pins
G
G Bearings
Signs of heat discoloration → Replace.
2. Measure:
Piston pin outside diameter
G
(with a micrometer 1)
Out of specification → Replace.
Piston pin outside diameter:
Standard:
21.995–22.000 mm
(0.8659–0.8661 in)
3. Check:
Piston-pin-to-piston free play
G
(with the piston pin in the piston as
shown)
Free play → Replace the piston pin,
piston or both.
5-25
E